luminosity
31luminosity — See: luminous …
32luminosity — lu•mi•nos•i•ty [[t]ˌlu məˈnɒs ɪ ti[/t]] n. pl. ties 1) luminance 2) 2) the quality of being intellectually brilliant, enlightened, inspired, etc 3) something luminous 4) astron. the brightness of a star as compared with that of the sun 5) opt… …
33luminosity — /luməˈnɒsəti/ (say loohmuh nosuhtee) noun (plural luminosities) 1. the quality of being luminous. 2. something luminous. 3. Astronomy the amount of light emitted by a star, usually expressed as a magnitude …
34luminosity function — noun a) A standard measure of the response of the human eye to light of different wavelengths b) A relative measure of the relationship between stellar magnitude and the distribution of stars between magnitudes …
35luminosity curve — noun : a curve expressing the product of relative spectral energy distribution by visibility …
36Mass–luminosity relation — In astrophysics, the mass–luminosity relation is an equation giving the relationship between a star s mass and its luminosity. The relationship is represented by the equation: where L⊙ and M⊙ are the luminosity and mass of the sun and… …
37Eddington luminosity — The Eddington luminosity (also referred to as the Eddington limit) in a star is defined as the point where the gravitational force inwards equals the continuum radiation force outwards, assuming hydrostatic equilibrium and spherical symmetry.… …
38Planetary nebula luminosity function — (PNLF) is a secondary distance indicator used in astronomy. It makes use of the [O III| [O III] λ5007 forbidden line found in all planetary nebula which are members of the old stellar populations (Population… …
39Solar luminosity — The solar luminosity, L odot, is a unit of luminosity (power emitted in the form of photons) conventionally used by astronomers to give the luminosities of stars.It is equal to the current accepted luminosity of the Sun, which is 3.839 times;… …
40period-luminosity relation — /pear ee euhd looh meuh nos i tee/, Astron. the relationship between the period of light variation and of the absolute magnitude of Cepheid variable stars. [1945 50] * * * …
